8b. Grammar
1. Choose the correct option. Give a reason for your choice. 2. Fill in each gap with don't have to, doesn't have to or mustn't. 3. Read the notice. Fill in each gap with must, mustn't, have to or don't have to. 4. Complete the sentences with have to, don't have to, must or mustn't. Make the sentences so that they are true for you.
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